title: Total arsenic, inorganic arsenic, and other elements concentrations in Italian rice grain varies with origin and type.
abstract: Rice is comparatively efficient at assimilating inorganic arsenic (Asi), a class-one, non-threshold carcinogen, into its grain, being the dominant source of this element to mankind. Here it was investigated how the total arsenic (Ast) and Asi content of Italian rice grain sourced from market outlets varied by geographical origin and type. Total Cr, Cd Se, Mg, K, Zn, Ni were also quantified. Ast concentration on a variety basis ranged from means of 0.18 mg kg(-1) to 0.28 mg kg(-1), and from 0.11 mg kg(-1) to 0.28 mg kg(-1) by production region. For Asi concentration, means ranged from 0.08 mg kg(-1) to 0.11 mg kg(-1) by variety and 0.10 mg kg(-1) to 0.06 mg kg(-1) by region. There was significant geographical variation for both Ast and Asi; total Se and Ni concentration; while the total concentration of Zn, Cr, Ni and K were strongly influenced by the type of rice.
authors.affiliation: Department of Agriculture, Via Universitàn. 100, University of Naples Federico II, 80055 Portici, Naples, Italy.
authors.forename: A
authors.initials: A
authors.lastname: Sommella
authors.forename: C
authors.initials: C
authors.lastname: Deacon
authors.forename: G
authors.initials: G
authors.lastname: Norton
authors.forename: M
authors.initials: M
authors.lastname: Pigna
authors.forename: A
authors.initials: A
authors.lastname: Violante
authors.forename: A A
authors.initials: AA
authors.lastname: Meharg
mesh_terms: D001151:Arsenic / Q000032:analysis*; D004784:Environmental Monitoring; D004785:Environmental Pollutants / Q000032:analysis*; D005506:Food Contamination / Q000032:analysis* / Q000706:statistics & numerical data; D005843:Geography; D012275:Oryza / Q000737:chemistry*
chemical_list: D004785:Environmental Pollutants; D001151:Arsenic
keywords: Food safety; Inorganic arsenic; Rice; Trace elements